Match the crystal-field splitting diagrams to the following descriptions:
i. a square planar complex of Pt²⁺
ii. a tetrahedral complex of Pt²⁺
iii. a weak-field octahedral complex of Co³⁺
vi. a strong-field octahedral complex of Co³⁺

• A. i → (3); ii → (1); iii → (4); iv → (2)
• B. i → (3); ii → (1); iii → (2); iv → (4)
• C. i → (1); ii → (3); iii → (2); iv → (4)
• D. i → (1); ii → (3); iii → (4); iv → (2)